Nine pre-mixed glass colors in a water emulsion of acrylic polymer resin. All colors can be intermixed. Paint thin or buttery thick using brush, palette knife, spatula, etc. Dry one color, overlay with a second or third – one fire. Available in 1/3 fl. oz. collapsible tube.
The Glass Painting Powders will attach to glass at 1250 degrees F. They will gloss between 1300 and 1400 degrees. F. They may be taken up to 1450 degrees F. without loss of color. Firing times and temperatures are only guides. Your actual experience may indicate the firing may need to be more or less time and temperature.
You may want to vent your kiln as it heats up to allow for any painting medium fumes to escape kiln.